Shuttle



F. GIEHLER Sept. 28 1926,

SHUTTLE Filed Sept. 24, 1923 Jizwrz 5am 75515562656611 Patented Sept. 28, 1926.

PATENT OFFICE.

FRITZ GIEHLER, OF CHEMNITZ, GERMANY.

SHULI'TLE.

Application filed September 24, 1923, Serial My invention relates to improvements in shuttles, and more particularly in hi h speed shuttles. One of the objects of tie improvements is to provide a shuttle and cooperating parts in the box by means of which the energy of the moving shuttle is gradually consumed so as to prevent injury to the shuttle, the parts mounted thereon and the box. I

Any known or preferred means ma be provided for consuming the energy of the shuttle, such for example as power storing means provided on the box or shuttle, or means acting by friction. Such frictional means consist for example of a friction member or members provided on the shuttle and cooperating with friction members located in the box and near the ends of the path of the shuttle, in which case the shuttle is preferably provided with a friction member disposed longitudinally thereof and adapted for frictional engagement with friction members provided at the ends of the box.

In order that my invention be more clearly understood an example embodying the same has been shown in the accompanying draw-v ing in which the same reference characters have been used in all the views to indicate corresponding arts. In said drawing,-

Fig. 1, is a plan view of the shuttle partly in section.

Fig. 2 is an elevation of the side of the shuttle on which the bobbin is mounted.

Fig. 3 is an elevation of the opposite side of the shuttle.

Fig. 4, is a cross-section taken on the line 44 of Fig. 1, and

Fig. 5 is a fragmentary side view of a shuttle box showing the shuttle therein engaged by braking elements associated with the box.

In the example shown in the figures the body is of the shuttle is formed at opposite sides with longitudinal grooves Z and Z adapted for cooperation with guide members provided in the box and holding the shuttle in proper position when being thrown at high velocity through the box. At its rear side the shuttle is formed with a longitudinal friction member consisting of a rib a made integral with or secured to the body 70 and having a lining a of hard metal providing two friction faces 6 and 6 At the opposite side of the shuttle there is the support for the bobbin. As shown the said support consists of a base plate 9 secured to the body a No. 664,431, and in Germany June 6, 1923.

by screws 9 and providing an undercut or dovetailed guide way or support for a foot 8 and a box 8 secured to the foot 8 The side wall 8 of the box is hinged to the footmember at f and it is acted upon by a spring f normally holding the wall 8 in closed position. By mounting the foot within the guide way of the base plate 9 the box .9 is adapted to yield in longitudinaldirection.

A pin 2 projecting into a cavity 1 of the body is is elastically held by suitable means such as WVhen the shuttle moving through the box arrives at the end of its path, itgets between a pair of brake members 11 and j held by springs or suitable weights a distance apart which is less than the breadth of the rib a, so that the energy of the shuttle is consumed by friction. Preferably the brake membersv are connected to controlling elements 0 and 0 connected to a suitable part of the loom which is adapted to retract the same at or before the beginning of the return stroke of the shuttle.

Though the energy of the shuttle is gradually consumed, it is desirable to provide the aforesaid means for elastically supporting the bobbin when throwing or arresting the shuttle. I have found that by the pin a and the buffers e and e a smooth operation is insured.

The bobbin is mounted'at the side of the shuttle. Fig. 1 shows that thereby the bobbin may be readily mounted and dismounted. The figure also shows that thereby the guide grooves are disposed in a suitable way.

My improved shuttle may be thrown at high velocity, it has a rectilinear path and prevents the improper unwinding of the arn.

While in describing the invention reference has been made to a particular example embodying the same, I wish it to be understood that I do not limit myself to the construction shown in the drawing.

I claim:

1. A shuttle comprising a carrier provided on one side with a longitudinally extending friction surface, means for supporting a bobbin on the other side of the carrier, said carrier being formed with top and bottom guides, said guides and friction surface being adapted to coact respectively with a stationary braking element and stationary guides when the shuttle approaches the limits of its movements. Y

2. A shuttle comprising a carrier provided on the top and bottom sides thereof with longitudinally extending guides, means to support a bobbin on one side of said shuttle, a friction surface projecting from the other side of the shuttle and relatively stationary guides and braking elements adapted to engage said guides and friction surface when the shuttle approaches the limits of its movements.

3. A shuttle comprising a carrier having longitudinal grooves in the top and bottom sides thereof and having a member project ing from one side formed with top and bottomparallel friction surfaces, means on the other side of the shuttle for supporting a bobbin, in combination with a shuttle box provided with ways adapted to enter said grooves and provided with friction shoes adapted to engage said friction surfaces.

4. A shuttle comprising a carrier having means on one sidethereof for supporting a bobbin and having a friction surface on the other side, incombination with a shuttle box provided with a brake shoe adapted to engage said friction surface and with guides adapted to engage the top and bottomsides of the shuttle.

5. In combination with a bobbin spindle having a polygonal end, a shuttle provided with parallel side Walls adapted to receive between them said polygonal end, one of the side walls being hinged and said end and side walls having coacting means for locking the spindle in position.

6. In combination with a bobbin spindle having flat sides, a shuttle having mounted thereon a pair of longitudinally extending plates adapted to receive between them the flat sides of said spindle, one of said plates being hinged on a longitudinal axis and resiliently held in engagement with said spindie, and means for locking said spindle be tween said plates.

7. In combination with a bobbin spindle, a shuttle, a slide mounted on the shuttle for limited longitudinal movement relatively thereto, resilient means for resisting the movement of said slide, and means mounted on said slide for detachably holding said spindle.

8. In a shuttle provided with longitudinal ways, a slide mountedin said ways and provided with an abutment, resilient buffers engaging opposite sides of said abutment, and means mounted on said slide for detachably holding the spindle of a bobbin.

9. A shuttle, comprising a body, abobbin carrier comprising a pair of parallel side walls one of which is hinged to the body and both formed withbores, and a spindle fitting between said walls and provided with pins fitting in said bores.

In testimony whereof I hereunto affix my signature.

FRITZ GIEHLEB. 

